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Haemophilus influenzae serotype f endocarditis and septic arthritis

Katerina Oikonomou1, Basel Alhaddad1, Kayla Kelly1

  • 1New York University School of Medicine, NYU Lutheran Medical Center, Brooklyn, NY, USA.

Idcases
|July 21, 2017
PubMed

Insights

Non-typeable Haemophilus influenzae (H. influenzae) strains are increasingly problematic, particularly in older adults. This case highlights the diagnosis and management of severe H. influenzae serotype f infections in an elderly patient.

Area of Science:

  • Microbiology
  • Infectious Diseases
  • Clinical Medicine

Background:

  • Haemophilus influenzae (H. influenzae) are gram-negative coccobacilli responsible for various infections.
  • H. influenzae strains are classified as encapsulated or unencapsulated (non-typeable).
  • Non-typeable H. influenzae are recognized as emerging pathogens, especially in the elderly population.

Purpose of the Study:

  • To report a case of severe infection caused by H. influenzae serotype f in an elderly patient.
  • To emphasize the clinical features, diagnosis, and management of infections due to non-typeable H. influenzae.

Main Methods:

  • Case report of a 73-year-old woman.
  • Clinical presentation, diagnostic workup, and treatment of H. influenzae serotype f infection.

Main Results:

  • The patient presented with bacteremia, endocarditis, and septic arthritis.
  • Infection was attributed to H. influenzae serotype f.

Conclusions:

  • Non-typeable H. influenzae, including serotype f, can cause severe invasive infections in elderly individuals.
  • Prompt diagnosis and appropriate management are crucial for favorable outcomes.

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